1/4"-20 Button Flange Socket Head Screw 304 Stainless Steel

1/4"-20 Stainless Steel Button Flange Head Socket Cap Screws

Screw Diameter - Thread Pitch: 1/4"-20


1/4"-20 Button head socket cap screws are bolts or machine screws with a hex drive style.

  • Feature a built in washer, which creates a large flange to keep the screw head from crushing thin or soft materials
  • Cylindrical head and hexagonal drive style
  • Protrudes above the installation surface for a nice finished look
  • Clean and unstamped domed head
  • Fully threaded and have a Class 3A thread fit
  • Offers corrosion and rust resistance
  • May be mildly magnetic
  • Minimum tensile strength is 70,000 psi
  • Minimum Rockwell hardness is B70
Head height is measured from the bottom of the flange to the top of the head. Screw length is measured from under the flange.


Note: Button head screws are not recommended for high strength applications.

Sizes Listed As:
Diameter - Thread Pitch x Length from Underside of Head

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Product Specifications
ANSI
B1.1
Body Diameter
1/4" (Max 0.2489 - Min 0.2408)
Color
Silver
Corrosion Resistant
Yes
Diameter
1/4"
Drive Style
Hex Socket
Fit
Class 2A
Head Diameter
(w/Flange) Max 0.550 - Min 0.500
Head Height Max
0.14
Head Style
Button Flange
Hex Drive
5/32"
Material
Stainless Steel 304
Overall Head Height
Max 0.140 - Min 0.135
Product Type
Socket Cap Screws
Standards Met
ANSI B1.1
Thread Direction
Right Hand
Thread Pitch (Count)
20
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
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